Les arbres de l’espoir, CRDI (1986)
Sur la sécheresse et la crise du bois de feu dans la région du Sahel africain et le développement des boisés villageois et des brise-vent pour résoudre le problème. La technologie appropriée sous la forme de poêles économes en combustible, la fabrication de charbon de bois et une méthode agricole appropriée, est également présentée au Sénégal, au Niger et au Nigéria.is video
Видео Les arbres de l’espoir, CRDI (1986) канала Neill McKee
Видео Les arbres de l’espoir, CRDI (1986) канала Neill McKee
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